Joshua Jackson is a National Treasure

Joshua Jackson comes out to support his leading lady, Diane Kruger (in J. Mendel), at the premiere of her new film National Treasure: Book of Secrets at NYC’s Ziegfeld Theatre on Friday.

Also on hand at the premiere were the stars of the film, Nicolas Cage and Jon Voight as well as actress Abigail Breslin.

The plot involves treasure hunter Benjamin Franklin Gates (Cage) looking to discover the truth behind the assassination of Abraham Lincoln, by uncovering the mystery within the 18 pages missing from assassin John Wilkes Booth’s diary.

National Treasure: Book of Secrets opens in theaters nationwide next Friday, Dec. 21.

40+ pictures inside of pretty pair Joshua Jackson and Diane Kruger…